Lock



M. SHENMAN.

LOCK.

APPLICAUON manl MAYis, 1921.

1,41 3, l 3'7. Patented Apr 18, 1922.

2 SHEETS-SHEET l.

i I l MEM IVI. SHEINMAN.

LocK.

APPLICATION FILED MAYI6, I92I.

1,41 3, 1 37. y Patented Apr. 18, 1922.

2 SHEETS-SHEET 2.

UNlTED `STATES MORRIS SHEINMAN, OF NEW YORK, N. AY.

LOCK.

Miara?.

Specification of Letters Patent.

Patented Apr. 18, 1922.

Application led May 16, 1921. Serial No. 469,753.

T o all whom it may (concern:

Be it known that I, MORRIS SHEINMAN, a resident of New York city, Bronx County, State of New York, and1 a citizen of the United States of America, have invented certain new and useful Improvements in Locks, of which the #following is a specification. f.

This inventionrrelates to improvements in locks, more particularly door locks, one of the objects of my invention being'to provide a lock that is proof against a jimmy or instrument to force the. lock-members apart in order that the bolt will clear the keeper whereby the door can be opened. A further object of the invention is to provide, in combination with a jimmy-proof lock, an alarm mechanism arranged to cooperate with the lock to give notice that an attempt is being made upon a door to force the lock..

A further object of the invention is to provide a spring lock, the bolt of which can be rendered dead after it has been locked, that is to say, locked against movement excepting by the use of a proper key or knob. The

above are merely outlines of my invention, a more detailed ldescription of which will hereinafter appear. Y

In the acompanying drawings, which illustrate an embodiment of my invention Fig. 1 is a face view of my improved lock (the cover being removed) and the cooperating keeper, which is shown in section;

Fig. 2 is an enlarged sectional view, the section being taken on a line 2-2 in Fig. 1;

Fig. 3 is an enlarged sectional view of the keeper, the section being taken on a line 3-3 in Fig. l1; A

Fig. 4 is a fac@s view of a portion of the lock, illustrating the releasing of the latch thereof;

Fig. 5 is a similarview of the lock and keeper which is illustrated in section, illustrating the position of the parts when the mechanism is locked and rendered dead;

Fig. 6 is an enlarged sectional detail View, illustrating one of the contacts included in the alarm circuit; Y

Fig. 7 is an enlarged fragmentary sectional view, illustrating the'conneotion between the lock mechanism and a cylinder lock;

Fig. 8 is a cross sectional View, the section being taken in line 8.8 in Fig. 1; and

Fig. 9 is a fragmentary cross sectional view, the section being taken on a line 9-9 in Fig; 1.

My improved lock consists of a casing member 10 within which is mounted a slidable expansible bolt 11, said bolt passing through the wall 120i the casing to engage a keeper 13 which will be mounted, as usual, upon the trame member 14 of a 'door (see Fig. 2), which is not shown. The casing 10 .will of course be secured to a door, a portion of which is indicated by 15. The casing 10 will be mounted upon lthe inside face of the door, and the keeper on the faceof the doorframe adjacent the casing 10. The lock for operating the bolt may be of any well known type, preferably of the pin cylinder type operated with a paracentric key and will be a sunken lock, that is. to say, mounted within the door, asindicated by'dotted lines 17 in Fig.-2, and. by fulllines in Fig. 7. The p-in cylinder 17 will operate a cam orv roll-back 19 within the casing 10.by the usual spindle connectlon or plate 20 which operates a hollow cylinder 21. The cylinder 21 carries a tongue 22 which rests within a jaw 23 in the cam'19. The-cam 19 will, of course, berotatably mounted and also movable longitudinally of its axis in order that tongue 22 can be withdrawn from the jaw 23 for aY--pur pose to be described. ln this instance," cam 19 is mounted within a socket 24 in casing 10 and is backed by a compressible spring 25 which surrounds a spindle 26 which at its outer 'end has secured thereto a knob 27 by which means the cam can be moved, longitudinally o1c its axis, against the tension of spring 25, to cause the tongue 22 to clear the jaw 23. When cam 1'9 is moved; as above described, it can be rotated to operate bolt` 11 independently of cylinder 17 The knob 27 will be located on the inside of the door; hence, bolt 11 can be operated from within a room even though the door has been locked from the outside. To operate the bolt, the cam 19 will include a finger28, in the form of a hook, in this instance, to contact with a lug'or projection 29 carried by the plate portion 30 of the bolt 11. The plate 3O-Will be biturcated arid provided with guide members 31 and 32 which straddle the'cam 19, the guide 31 bearing against a post 33 and the guide 32 against a post 34 carryin a lip 3p to be engaged by a latch or tumb er 36 carried by a plate 37 positionedpver the plate 30 of bolt 11, but not secured thereto.

otally connected to said bolt at 39. vT he inner ends 40 of the hooks project into casing 1U in order that they' can be .actuated by lthe transversely movable plate 37, the outer end .of each hook l38, 38, being arranged, when said hooks are moved upon their pivots, to

project beyond the sides of the bolt 11, asindicated' in Fig. 5. The hooks 38, 38a will, when the door is unlocked, be positioned 1 within the bolt 11, as indicated in Fig. 1, be-

ing held in such position by a spring 41. Thebolt 11 will normally project beyond the Casing 10, being held in such position by a spring 42 which is anchored, intermediate its ends, to a post 43 carried by thetrans versely movable plate 37 The post 43 also pivotally supports the latch 36. The leg 45 of spring 42' bears against a post 46 carried by plate 30, while the leg 47 of said spring bears against latch 36. rIhe spring 42 will force bolt 11 outwardly and latch 36 toward the lip 35 on post 34. The function of latch 36 is to prevent movement of plate 37 transversely ofthe casing 11 .in order that said plate can be locked, and operable onl by the cam 19. --The latch 36 lwill be provi ed with a nose piece 48 to engage lip 35 to lock plate 37 against. movement.. In Fig. 1, plate 37, is illustrated as locked against'moveme'nt to prevent actuation of the hooks 38, 38a. To prevent movement of plate 37 longitudinally of the casing, when acted upon by the cam 19, I provide said plate with'depending fflanges 49 and 50 (see Fig. 8), having slots to engage ides 51 and 52 carried by the casing 10 see also Fig. 2). The plate 37 will slide upon the guides 51 and 52 when acted upon by the cam 19 which carries a nger 53 to actuate said plate'37 and also llatch 36. To enable finger 53 to actuate the latch 36, I provide same with a nose piece 54 I which proj ects outwardly and is located between lugs 55 and 56 carried by the tra-nsversely movable slide 37. The nose-piece 54 projects slightly beyond the face of lug 55 and lug 56; hence, the latch 36 is the first to b'e operated when cani 19 is actuated.

f To operate the hooks 38, 38, plate y37 is provided at one end with an arm 57 to actuate hook 38 and at the other end with a jaw 59 to actuate a. lever 60 which in turn operates hook 38, 4the lever 60 l.being pivotally supported by a pin 6l carried by the casing 10. l

In combination with the lock mechanism, I employ an alarm device, in this instance a bell 62, operated from a source of electrical supply 63, said bell and source of supply being in 'circuit with (in this instance) two contacts 64. and carried by the keeper 13 but insulated therefrom, as can be seen in Fig. 6, a detailed description of the manner of insulatingl the contactsbeing omitted, as it may be accomplished in any desirable manner. The circuit for the bell 62 will be closed by the hooks 38, 38, when said hooks are in locking position should the door be forced suiiciently to cause said hooks to touch said contacts. Under normal conditions the hooks will be out of contact with the contacts 64 and 65, as can be seen in Fig. 5. The keeper 13 will be provided with a striker 66 to force the bolt inwardly against the tension of spring 42 when the door is being shut, as said bolt will normally project beyond the adjacent edge of the door, being yieldablyy held 'in such position by said vspring 42.

a paracentric key will be inserted into pinl cylinder 17 and turned, which operation will turn cam 19. To lock the door the cam will be turned as per the arrow 67, Fig. -1. The first element to be moved will be the latch 36 which will be moved away from lip 35 (see Fig. 4); the releasing of the latch 36 will free plate 37 A continued movement of the cam will cause linger '53to contact with lug 55 and force plate 37 transversely of the casing (see Fig. 5),- which movement will cause arm 57- to move hook 38v upon its pivot and lever 60 to moti hook 38a upon its pivot. The movement of hooks 38, 38a will cause the outer ends to move outwardly beyond the sides of the bolt 11. After plate 27 has been` 4100 l -t-he'key. The in cylinder as has been stated,

will be locate on the outside ofthe door and the knob 27 on the inside.

Should it be necessary to unlock the door, from the inside, even though it be locked from the outside, the knob 27. can be pulled in the direction of the arrow 69, Fig. 7, which will cause the jaw 23 to clear the cylinder 21, after which the cam can be rotated to Cause finger 53 to operate the latch 36 and plate 37. vWhen the door is not locked, hooks 38, 38a will be positioned to permit actuation of the bolt- 11 by the movement of the cam' '19 in the direction of the arrow 70, Fig. 1, inwhich instance finger 28 will contact with projection27 on vplate 30 of bolt 11, and force the bolt to the left in Fig. 1, against the tension'of the spring 42. The hooks 38. 38a are provided for the purpose of preventing the withdrawal of the to the door by screws 75 which bolt 11 from the outside of the door excepting by means of a proper key and also to prevent the forcin f of the doorl away from the door frame. Should an Iattempt be made to'force the door away from the frame, by

- the insertion of an instrument in the space 71, the hooks 38, 38a would contact with the wall 72 of' the keeper 38 and prevent further movement, or rather with the contacts 64 and 65, which would close the circuit for the bell 62; hence, said bell will rin andA indicate that the door is being force It will be evidentthat the hooks 38, l38a not only act to prevent'the forcing of the door, but also act as a switch to close the circuit forthe alarm, no other switches being necessary.- The cylidr'17 is, ,inI this instance,

mounted upon the cover plate 73 for the .casing 10 which -is secured to the casing l10 by Screws 74-which engage the posts 33 and 34. The casing and its plate will be secured ass through the casing and its-cover plate g3.

. Under normal conditions, that is to say, when hooks 38 and 38a are not locked against movement, or rendered dead, the lock will act asan ordinary springlatch, the bolt 11 being free to be moved inwardly by a key lthe latch, supplemental locking means carried by the bolt, arranged for operation by said transversely movable plate, and a key or knob operated mechanism arranged to firstly operate the latch to release said plate, and thereafter to operate the plate to' actuate the supplemental locking means.

2. In a `lockxineelianisnn a casing, a bolt movable longitudinally thereof, a plate movable transversely of the casing, a latch carried by the plate to lock same against movement, means carried by the casing to engage the latch, supplemental locking means `carried by the bolt arranged for operation by said transverselyv movable plate, a `cam carried by the casing to actuate said plate and latch carried thereby, a key `or knob oper ated mechanism, releasably connected to the cam, `to operate the cam, and means to disengage the cam from the key operated mechanism whereby said latch and late canbe operated inde endently` oi the key or knob operated mec lanism. Y 3. In-a lock, a bolt, an anti-jimmy device carried by said bolt, means for moving the carriedby lthe bolt, and a'detent adapted to 7@ vlock the anti-jimmy device in both an oper- ,ative and in-operative position.

5. In a lock,'a bolt, an anti-jimmy hook and a revoluble cam and a ,member for operativelyengaging the anti-jimmy hoo-k, the cam adapted to engage the member and move it transversely ofthe bolt.

6. In a lock, a bolt, an anti-jimmy device carried by the bolt and means for operating the same and a swinging tumbler for locking the anti-jimmy device.

7. In a lock, a bolt, an anti-jimmy device. carried by the bolt and means for operating the same and a locking tumbler carried by the operating means. y

8. In a lock,.a strap bolt bent in U-form andl an anti-jimmy device carriedv within the U. Y

9. In a lock, a bolt, an anti-jimmy hook, a revoluble cam for the boltv and a member' adapted to engage the'hook andto be engaged by said cam andto be moved by said cam transversely of said bolt.

`10.y In a lock, a bolt, a pair 01".:- pivoted anti-jimmy hooks carried one upon each 95 side of said bolt, a member movable trans l versely of said bolt and adapted to engage one of said hooks, a lever, the lever adapted to be moved by said transversely moti-ng member and to engage the otherv of saidl hooks to move the same.

l1. In a lock, a bolt, a pair of anti-jimmy hooks, a rotating cam for .the bolt, a memlber straddling the bolt between the Icam and hooks and movable transversely of the bolt vby the cam and adapted to -move one of the hooks in one direction and another` of the hooks in another direction.

12. In a lock, a bolt, a roll back for the bolt an anti-jimmy device, a .slide movable by the roll back for operating the a`ntijimmy device, and a swinging locking tumbler carried by said slide.

13. In a lock, a strap bolt, the nose of which is bent in U-form, a pair of antiy immy hooks one upon each side ofthe olt, triple pins joining the sides of the U, one of the pins mounting one of the hooks, another of the pins mountin another of the hooks and a spring carrie by thetliird '12o pin and engaging both of the hooks.

14. In a lock, a bolt, an anti-jimm device, a member'for operating the anti-jimmy' device, a swinging lockin tumbler carried by the member, a` pivot pln for the swinging tumbler, and a spring carried by the pivot pin adapted to urge the bolt 1n one direction and the tumbler in an opposite direction. c v

15. In a lock, a spring-urged automati- 13o hooks, a casing, a lever pivoted to the cas-- cally retracted bolt, a roll-back and means carried by the bolt for engagement by the roll-back, an anti-jimmy device carried by the bolt and a clearance between the rollback and bolt, whereby, When the roll-back is locked, the bolt may `move from operativey to in-operative`position..

16. In a lock, a spring-urged bolt, an anti-jimmy device and a roll-back' adapted to retract the bolt and to operate the antijimmy device.

17. In a lock, a. bolt, an anti-jimmy device carried by the bolt, a roll-back adapted to retract the bolt and to move said antijimmy device into an operative position by a movement in a reverse direction and spring means for projecting the bolt and retracting the anti-Jimmy device.

18. Ina lock, a sliding'bolt, an anti-jimmy device, a casing, a member slidable upon the casing transversely of the bolt and a Aroll-back adapted to engage the s lidable member to slide the same, the slidable member adapted to move the anti-jimmy device. 19. In a lock, a bolt, a pair of anti-jimmy ing, a member slidable transversel of the casin and adapted to move one of t e hooks and a so to move the lever.

20. In a lock, an eX ansible bolt, a rollback, a member movab e transversely to the bolt to expand the bolt, a tumbler pi-voted upon and carried by said member, the tumbler extending entirely across'the bolt, a lug projecting from the side of the bolt opposite the pivot of the tumbler and adapted4 to engage the tumbler to hold'the sliding member locked against movement.

' 21. In a lock, a roll-back, an anti-jimmy device, a carriage inter-.connecting the rollback and anti-jimmy device and provided With a face adapted to engage the roll back and -a 4tumbler mounted 'upon the carriage and also provided with a face adapted to.

engage the roll-back.,

22. ln a lock, a sliding bolt, a pair of anti-jimmy hooks, a keeper, the hooks removed from and spaced in relation to the Wall of the keeper when in projected position.

23. In a-lock, a roll-back, knob and key mechanism for operating said roll' back, a spring-urged expansible bolt, the 'roll-back adapted to expand and retract the bolt and means inter-connecting the knob and key mechanism adapted to be dis-connected by a pre-determined movement of the knob.

24. In a lock, a roll-back, knob and key mechanism for operating said roll back, a spring-urged expansible bolt, the roll-back adapted to expand and retract the bolt and means inter-connecting the knob and key mechanism adapted to be disconnected by a pre-determined movement of the knob, the disconnecting means including a rabbet and tongue.

25. In a lock, a spring-urged expansible bolt. normally yieldingly held' unexpanded.

26. In a lock, a spring-urged expansible bolt normally yieldingly held unexpanded, and a common member for retracting and expanding the bolt.

27. In a lock, a spring-urged expansible bolt yieldingly held unexpanded, and means for locking the bolt in both expanded and unexpanded position. r

28. In a lock, a rol1-back,.an anti-jimmy device, a bolt, a carriage inter-connecting the roll-back and anti-jimmy device and provided With a face adapted to engage the roll-back and a tumbler mounted upon the carriage and also provided with a face adapted to engage the roll-back, the carriage provided With a guide for the tumbler 1n JuXta-position to said faces.

29. In a lock mechanism, a movable bolt, a movable cam to operate the bolt, a key operated device releasably connected to said cam arranged to actuate the cam to operate said bolt, and means to disengage the cani and 'lock mechanism 2whereby said cam can be moved to actuate independently of the lock mechanism.

MORRIS SHEINMAN. 

